Head support for radioreceivers and the like



July 21, 1925.

H. P. CHILDRESS HEAD SUPPORT FOR HADIORECEIVERS AND THE LIKE 2Sheets-Sheet 1 Filed May 18, 1923 663'; mvEN'r'OR,

WITN E8528 July 21, 1925. 1,546,567 H. P. CHILDRESS HEAD SUPPORT FORRADIORECEIVERS AND THE LIKE Filed May 18, 1923 2 Sheets-Sheet 2WITNESSES Patented July 21, 1925" outrun stares Lassa? PATENT orries.

HENDERSON P. GHILDRESfi, OF MEMPl-Ilg, TENNESSEE.

HEAD SUPPORT FOR .RADIORECEIVERS AND THE LIKE.

Application filed m 18;

the like, wherehy the latter may he sup-.

ported in proper relation 'to the ears of the person receiving an'iessage.

ln devices of this kind, which are used by a numher oi differentpersons, it is n ressary very frequently to adjust the tension of thehead hand or the angular relation oil the stcn'is which support thereceivers in order that the device may fit the head ot the individualusing the same without causing discomfort to the user, and while at thesame time preserving the proper position of the receivers withrelation'to the ears.

The ohject oi the present invention is to provide a device for effectingthis adjustment, which may he readily applied to-a head support of theusual type, without modifying the construction thereof, and may hequickly adjusted to hold the receivers in any position desired.

The present invention is related to my ap plication, Serial No. 679,370,filed December 8, 1923, in which are presented claims generic to thestructure shown in this application.

The principles of the invention and the structural details oi? the samewill he best understood. from the detailed description which follows,taken in connection with the accompanying drawing.

In the drawing: 7

Figure 1 is a front elevation of a head support, having my inventionattached thereto.

Figure 2 is a plan view of the same.

Figure 3 is a sectional detailed view of the means by which theinvention is secured on the stem which supports the receiver.

Figure 4 is a detailed perspective view of a washer forming part of theinvention.

Figure 5 is a view similar to Figure 1 showing a modified form of theinvention.

The head support to which my invention is applied comprises the usualhead band 5, to the ends of which are secured collars 6 in which stems 7are mounted for vertical ad- 1923. Serial No. 839,871.

justment. Each of the collars 6 has an upwardly extending split portion8, which is externally threaded to receive a thumh nut 9 for the purposeof: securing the stem '7 in its position of adjustment. Each steincarries a yoke 10 at its lower end in which a receiver 11 is pivotallysupported, and at its upper end the'stem is provided with removable knob12 for preventing the stem from slipping entirely out of the collar 6.

In the form of the invention illustrated in Figures 1 to i, awasher 13is seated on the collar 6 at the base of the split portion 8, and isprovided on one side with a downwardly turned lip 14L adapted to extendhetween. the two members oi. the head hand and on. its opposite side isformed with projecting lugs forming hetween them a slot 16. itnecessary, a spacing washer 17 may he inserted hetween the washer 13 andthumb nut 9 for hol fling the former against its seat on the collar 6,with the lip let held hetween the branches of the hand 5 to prevent thewasher 13 from turning when the nut 5.) is adjusted.

A pair of: lovers 18 are fulcrumed in the slots 16, and are eachprovided with an eye 19 at one end to receive the stem '7, while theupper ends are bent toward each other as at 20, terminating in oppositethreaded extremities 21 which are adjustable toward and, from each otherby means of a turnbuckle 22 having a knurled portion 23, by means ofwhich it may be conveniently adjusted.

It will he understood that the knob 12 and nut 9 may he removed, thuspermitting the stem 7 to he detached from the collar ti so that theattachment which constitutes the invention may be readily assembledthereon.

In the operation or my invention, when the support is attached to thepersons head, by turning the turnbuckle-22 in one direction or theother, the levers 18 and stems 7 are caused torock, moving the receivers11 toward and away from the ears of the user. The levers 18, as well asthe terminal portions of the head hand 5, are sui'liciently resilient topermit this adjustment, which varies the angular relation between thestems 7 supporting the receivers, and consequently varies the pressurewhich is exerted against the ears.

A similar result may he effected by the construction shown in Figure 5.In this form of the invention, a pair of rods 2a are eachi'ormed at oneend with an eye 25 adapt ed to be secured underneath the knob 12, andthe inner ends of the rods 2st are connected by a turnbuckle 2G in thesame manner as the opposed ends 20 of the levers 18 are connected. Theoperation is similar to the first described construction, but in etlecting the adjustment in this case, the stems 7 act as levers while thecollars act as tulcrums and the extremities of the head band are flexedin similar manner.

The invention is especially valuable with reference to radio receiversfor reason that the latter are frequently used by a great many ditlerentpersons, necessitating frequent adjustment in order to secure the bestresults without unnecessary inconvenience to the user. l-leretofore whenthe adjustment of the tension between the receivers was affected bybending the head band 5, it frequently resulted in such misshapement ofthe latter that the receivers were no longer held in proper position toobtain the best results. With the present invention, however, anydesired adjustment may be quickly effected without bending any of theparts beyond their elastic limit, and consequently without in any wayadversely ailecting the elliciency of the instrument.

lVhile I have shown and described the specilic details of two forms inwhich the invention may be embodied, it is to be understood that theseare merely illustrative, and that various other modifications may bemade therein as long as such modifications mark no material departurefrom the salient features of the invention as defined in the claims.

What is claimed is:

1. A head support of the character described comprising a head bandterminating in collars in which stems are mounted for supporting thereceivers, levers intermediately supported adjacent. said collars andconnected with the stems, and means connecting said levers andadjustable to rock them simultaneously in opposite directions to varythe distance between the receivers.

2. A head support of the character described comprising a. head handterminating in collars in which stems are mounted for supporting thereceivers, levers intermediately fulcrumed adjacent said collars andhaving eyes at one end receiving the respective stems, means connectingthe opposite ends of the levers and adjustable in length to move thelovers in opposite directions to vary the distance between thereceivers.

3. An attachment for a head support having a band with stems secured inits extremities for supporting the receivers, comprising a pair of:t'ulcrums provided with means for attaching the same to the stems,levers fulcrumed on said members, and means connecting correspondingends of said levers, and adjustable to move the same toward and awayfrom each other and thereby to vary the distance between the receivers.

4. An attachment for a head support having a band with stems secured inits extremities for supporting the receivers, comprising a pair offulcrum members adapted to be secured to the extremities of the band,levers fulcrumed on said members and provided with means for connectingthe same to the stems, and means connecting the corresponding ends ofthe levers and adjustable in length to move the levers bodily inopposite directions for adjusting the distance between the receivers.

5. An attachment for a head support having a band with stems secured inits ext-remities for supporting the receivers, comprising a pair offulcrum members adapted to be secured to the extremities of the band,levers tulcrumed on said members and provided with eyes for receivingthe stems, and means for adjusting the distance between correspondingends of the levers to move the same bodily with their tulcrums toward oraway from. each other and thereby vary the distance between the stemswithout changing the angularrelation of the stems to each other.

6. An attachment for a head support having a band with stems secured inits extremities for supporting the receivers, comprising a pair offulcrum members adapted to be secured on the stems, levers fulcrumed onsaid members and provided at one end with eyes for receiving the stems,the other ends of the levers being bent toward and into alinement witheach other, anda turn buckle connecting the alined ends and operable tomove the lovers bodily toward. and from each other and thereby adjustthe angular relation of the stems to each other.

In testimony that I claim the foregoing as my own, I have hereto aliixedmy signature.

HENDERSON P. CHILDRESS.

